A merger between Nabucco gas pipeline for Europe and Russian-backed rival South Stream is not possible, said, David Thorne, the U.S. envoy to Paris, Hotnews.ro informs. The reaction came after the Italian gas company ENI, a member of the South Stream project consortium was in favour of “a merger between the South Stream and Nabucco pipelines.” Russian natural gas monopoly Gazprom is pushing for the South Stream pipeline through southern Europe in part to avoid politically sensitive gas transit routes in Ukraine. European partners are pressing for the planned Nabucco pipeline, which would rely on non-Russian suppliers for gas. South Stream could move more than 2 trillion cubic feet of natural gas to European consumers each year by 2015. Nabucco, meanwhile, would transport more than 1 trillion cubic feet of gas to European consumers when gas starts to flow through the pipeline by 2015.